Clomiphene
Clomiphene interacts with estrogen receptors in the hypothalamus and pituitary, blocking estrogen-mediated negative feedback. This increases GnRH pulsatility and elevates pituitary secretion of LH and FSH. In women, the resulting FSH surge promotes follicular maturation and ovulation. In males, elevated LH stimulates Leydig cell testosterone production and elevated FSH supports spermatogenesis. The zuclomiphene (cis) isomer has a longer half-life and partial estrogen agonist activity, which contributes to the mixed agonist/antagonist profile of the racemic product.
Injectable esters release over days to weeks depending on the ester; oral agents act within hours. Hormonal effects accrue over weeks, and dosing is individualized by a clinician.
Oral tablet; store at controlled room temperature in a dry place, protected from heat, light, and excessive moisture.
Clinical Evidence
What the literature says
Pharmacokinetics
- Routes
- Oral
Citations (3)
Last reviewed: 2026-06-15
Research Guide
How users approach this compound
The following reflects patterns observed in research literature and community protocols. This is not medical advice and does not constitute a clinical recommendation.
Reported Uses
- FDA-approved ovulation induction in anovulatory women
- Off-label use in males to raise endogenous testosterone and preserve fertility in secondary hypogonadism (prescriber-directed)
Key Research Benefits
- FDA-approved for induction of ovulation in anovulatory women per label indication
- Studied off-label in males for raising endogenous LH, FSH, and testosterone via hypothalamic-pituitary axis stimulation
Potential Side Effects
Considerations and Cautions
- Liver disease or impaired hepatic function
- Abnormal uterine bleeding of undetermined cause (in women)
- Uncontrolled thyroid or adrenal dysfunction
- Ovarian cysts (in women)
- Visual symptoms (history of visual field defects or optic neuritis)
- Pregnancy
Labs to monitor
Educational context only, not a testing mandate. Any bloodwork decisions belong with your clinician.
- Estradiol (E2): SERM action affects estrogen signaling; monitoring guides estrogen balance.
- LH and FSH: Primary pharmacodynamic endpoint; confirms gonadotropin response.
- Lipid panel: SERMs affect lipid metabolism; baseline and periodic monitoring appropriate.
Dose Calculator
Peptide Reconstitution Calculator
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Not medical advice
Information on DoseVault is for educational purposes only and is not a substitute for medical advice, diagnosis, or treatment from a qualified healthcare provider.